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Full Discussion: Sort references
Top Forums UNIX for Dummies Questions & Answers Sort references Post 302903997 by Don Cragun on Saturday 31st of May 2014 11:40:25 PM
Old 06-01-2014
With well over 800 posts in these forums and the code you have been given, I am disappointed that you could not add reference numbers on your own. Try this minor modification to clx's awk script:
Code:
#!/bin/ksh
# Usage: sortrefs [starting_sequence_number [input_file]]
# Sort references found in the given input_file (default ref.txt) and add
# sequences numbers starting with starting_sequence_number (default 1).
awk '
{	gsub(/\n/,"\1");
	print $0 "\1"
}' RS='' "${2:-ref.txt}" | sort | awk -v sseq="${1:-1}" '
{	gsub(/\1/, "\n")
	printf("[%d] %s\n", sseq++, $0)
}'

As always, if you want to try this on a Solaris/SunOS system, change awk (in both places where it is used in this script) to /usr/xpg4/bin/awk, /usr/xpg6/bin/awk, or nawk.

I use the Korn shell, but this script can use, ksh, bash, or any other shell that supports POSIX required variable expansions. If you save the above script in a file names sortrefs, make it executable, and invoke it as:
Code:
./sortrefs 44

when ref.txt contains your sample input, the output produced is:
Code:
[44] Anderson, E.R., Duvall, T.L., Jr., and Jefferies, S.M., 1990. Modelling 
     of Solar Oscilation Power Spectra. The Astrophysical Journal, vol. 364, 
     p. 699.

[45] Basu, S., Antia, H.M., and Tripathy, S.C. 1999. Ring Diagram Analysis
     of Near-Surface Flow in the Sun. The Astrophysical Journal, vol. 512, 
     pp. 458-470.

[46] Duvall, T.L., Jr., and Harvey, J.W., 1986. Solar Doppler Shifts: Sources 
     of Continuous Spectra. In Seismology of the Sun and the Distant Stars, 
     (ed. D. Gough), NATO A Ser., Reidel, Dordrecht, p. 105.

[47] Nigam, R., Kosovichev, A.G., Scherrer, P.H., and Schou, J., 1998. 
     Asymmetry in Velocity and Intensity Helioseismic Spectra: A solution 
     to a long-standing puzzle. The Astrophysical Journal, vol. 495, 
     pp. L115-L118.

 

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LEARN ABOUT MOJAVE

ucblinks

ucblinks(1B)                                         SunOS/BSD Compatibility Package Commands                                         ucblinks(1B)

NAME

       ucblinks - adds /dev entries to give SunOS 4.x compatible names to SunOS 5.x devices

SYNOPSIS

       /usr/ucb/ucblinks [-e rulebase] [-r rootdir]

DESCRIPTION

       ucblinks  creates symbolic links under the /dev directory for devices whose SunOS 5.x names differ from their SunOS 4.x names. Where possi-
       ble, these symbolic links point to the device's SunOS 5.x name rather than to the actual /devices entry.

       ucblinks does not remove unneeded compatibility links; these must be removed by hand.

       ucblinks should be called each time the system is reconfiguration-booted, after any new SunOS 5.x links that are needed have been  created,
       since the reconfiguration may have resulted in more compatibility names being needed.

       In  releases prior to SunOS 5.4, ucblinks used a  nawk rule-base to construct the SunOS 4.x compatible names. ucblinks no longer uses  nawk
       for the default operation, although  nawk rule-bases can still be specifed with the -e option.  The  nawk rule-base equivalent to the SunOS
       5.4 default operation can be found in /usr/ucblib/ucblinks.awk.

OPTIONS

       -e rulebase     Specify rulebase as the file containing nawk(1) pattern-action statements.

       -r rootdir      Specify rootdir as the directory under which dev and devices will be found, rather than the standard root directory /.

FILES

       /usr/ucblib/ucblinks.awk        sample rule-base for compatibility links

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE         |      ATTRIBUTE VALUE        |
       +-----------------------------+-----------------------------+
       |Availability                 |SUNWscpu                     |
       +-----------------------------+-----------------------------+

SEE ALSO

       devlinks(1M), disks(1M), ports(1M), tapes(1M), attributes(5)

SunOS 5.10                                                          13 Apr 1994                                                       ucblinks(1B)
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